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公开(公告)号：US20220179207A1
公开(公告)日：2022-06-09
申请号：US17677575
申请日：2022-02-22
Applicant: Tobii AB
Inventor： Daniel Torneus , Peter Schef , Magnus Arvidsson , Peter Blixt , Fredrik Mattinson
Abstract: The disclosure relates to an eye tracking device for tracking movements of an eye comprising, a viewing plane for displaying a projection of an image to the eye of a user, an image module placed on a same side of the viewing plane as the eye, at least one illuminator for illuminating the eye, a control unit adapted to receive an image captured by the image module, and calculate a viewing angle of the eye, a holographic optical element (HOE), wherein a HOE is placed between the eye and the viewing plane, wherein the image module is adapted to capture an image of the HOE, and wherein the HOE is adapted to direct at last a first portion of incident light reflected from the eye, in a first angle towards the image module, the first angle being different from an angle of the incidence of the incident light
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公开(公告)号：US11256087B2
公开(公告)日：2022-02-22
申请号：US16456805
申请日：2019-06-28
Applicant: Tobii AB
Inventor： Daniel Tornèus , Peter Schef , Magnus Arvidsson , Peter Blixt , Fredrik Mattinson
Abstract: The disclosure relates to an eye tracking device for tracking movements of an eye comprising, a viewing plane for displaying a projection of an image to the eye of a user, an image module placed on a same side of the viewing plane as the eye, at least one illuminator for illuminating the eye, a control unit adapted to receive an image captured by the image module, and calculate a viewing angle of the eye, a holographic optical element (HOE), wherein a HOE is placed between the eye and the viewing plane, wherein the image module is adapted to capture an image of the HOE, and wherein the HOE is adapted to direct at last a first portion of incident light reflected from the eye, in a first angle towards the image module, the first angle being different from an angle of the incidence of the incident light.
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公开(公告)号：US20200159012A1
公开(公告)日：2020-05-21
申请号：US16456805
申请日：2019-06-28
Applicant: Tobii AB
Inventor： Daniel Tornèus , Peter Schef , Magnus Arvidsson , Peter Blixt
Abstract: The disclosure relates to an eye tracking device for tracking movements of an eye comprising, a viewing plane for displaying a projection of an image to the eye of a user, an image module placed on a same side of the viewing plane as the eye, at least one illuminator for illuminating the eye, a control unit adapted to receive an image captured by the image module, and calculate a viewing angle of the eye, a holographic optical element (HOE), wherein a HOE is placed between the eye and the viewing plane, wherein the image module is adapted to capture an image of the HOE, and wherein the HOE is adapted to direct at last a first portion of incident light reflected from the eye, in a first angle towards the image module, the first angle being different from an angle of the incidence of the incident light
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